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CVE-2026-104615

CVE-2026-104615

waiting for further signalsZero needs more public information before it can validate it.

GHSA-gx8v-2929-9q95 ↗EUVD-2026-114135 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
SUSE Rancher >=v0.16.0; <0.16.3; >=v0.15.0; <0.15.17; >=v0.14.0; <0.14.12; >=v0.13.0; <0.13.17; >=v0.12.0
fixed in 0.16.3, 0.15.17, 0.14.12, 0.13.17
CWE-290 Authentication Bypass by Spoofing
ETK-2026-3140Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:golang/github.com/rancher/fleet
cvss7.9cna vendorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H
1h 08msince last run
44mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
trigger signal (cve.org) +0hwaiting for further signals+11h52m
0
+2h
+4h
+6h
+8h
+10h

description

SUSE Rancher Fleet cluster registration is affected in the reported vulnerable release ranges, including Fleet versions before 0.12 and affected 0.13 through 0.16 releases. An actor able to control a registration token can cause a registration to be linked to a managed cluster identity associated with a different token.

mitigation

Upgrade Fleet to a fixed release: 0.13.17, 0.14.12, 0.15.17, or 0.16.3. Restrict access to registration tokens and rotate tokens that may have been exposed.

fixed in 0.16.3, 0.15.17, 0.14.12, 0.13.17

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
contextual
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
yes, high privileges
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
–
agent run time
44m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-30 15:49Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-10-30 15:49Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-104615

this entry in the feed

GET /api/v1/feed/CVE-2026-104615

{
  "etk_id": "ETK-2026-3140",
  "cve_id": "CVE-2026-104615",
  "display_id": "CVE-2026-104615",
  "ghsa_id": "GHSA-gx8v-2929-9q95",
  "euvd_id": "EUVD-2026-114135",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Cluster identity spoofing in Rancher Fleet registration",
  "summary": "SUSE Rancher Fleet cluster registration is affected in the reported vulnerable release ranges, including Fleet versions before 0.12 and affected 0.13 through 0.16 releases. An actor able to control a registration token can cause a registration to be linked to a managed cluster identity associated with a different token.",
  "mitigation": "Upgrade Fleet to a fixed release: 0.13.17, 0.14.12, 0.15.17, or 0.16.3. Restrict access to registration tokens and rotate tokens that may have been exposed.",
  "vendor": "SUSE",
  "product": "Rancher",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v0.16.0",
        "<0.16.3"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.16.3"
      ],
      "package_name": "github.com/rancher/fleet",
      "purl": "pkg:golang/github.com/rancher/fleet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v0.15.0",
        "<0.15.17"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.15.17"
      ],
      "package_name": "github.com/rancher/fleet",
      "purl": "pkg:golang/github.com/rancher/fleet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v0.14.0",
        "<0.14.12"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.14.12"
      ],
      "package_name": "github.com/rancher/fleet",
      "purl": "pkg:golang/github.com/rancher/fleet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v0.13.0",
        "<0.13.17"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "0.13.17"
      ],
      "package_name": "github.com/rancher/fleet",
      "purl": "pkg:golang/github.com/rancher/fleet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">=v0.12.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [],
      "package_name": "github.com/rancher/fleet",
      "purl": "pkg:golang/github.com/rancher/fleet"
    }
  ],
  "cwes": [
    290
  ],
  "cvss_score": 7.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 44.4866661,
  "t0_at": "2026-10-30T15:49:01.402000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-30T15:49:01.402000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-30T15:49:01.402000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-104615"
    }
  }
}

published 2026-10-31 02:56Z
last change 2026-10-31 04:13Z

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